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Encrypt Your Data With EncFS (Debian Squeeze/Ubuntu 11.10)
EncFS
provides an encrypted filesystem in user-space. It runs without any
special permissions and uses the FUSE library and Linux kernel module to
provide the filesystem interface. It is a pass-through filesystem, not
an encrypted block device, which means it is created on top of an
existing filesystem.
(HowTos)

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How To Integrate ClamAV Into PureFTPd For Virus Scanning On Debian Squeeze
This tutorial explains how you can integrate ClamAV into PureFTPd for
virus scanning on a Debian Squeeze system. In the end, whenever a file
gets uploaded through PureFTPd, ClamAV will check the file and delete it
if it is malware.
(HowTos)

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AVG Antivirus For Linux/FreeBSD Plus Qmail Mail Server
This document describes how to deploy AVG Antivirus for Linux/FreeBSD to the Qmail mail server.
It is usable for AVG version 8.5, 10 and 2012.
(HowTos)

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Using mod_spdy With Apache2 On Debian Squeeze
SPDY (pronounced "SPeeDY") is a new networking protocol whose goal
is to speed up the web. It is Google's alternative to the HTTP protocol
and a candidate for HTTP/2.0. SPDY augments HTTP with several
speed-related features such as stream multiplexing and header compression.
(HowTos)

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Distributed Replicated Storage Across Four Storage Nodes With GlusterFS 3.2.x On Ubuntu 11.10
This tutorial shows how to combine four single storage servers (running Ubuntu 11.10) to a distributed replicated storage with GlusterFS.
(HowTos)

http://www.howtoforge.com –
OpenSUSE 12.1 Samba Standalone Server With tdbsam Backend
This tutorial explains the installation of a Samba fileserver on
OpenSUSE 12.1 and how to configure it to share files over the SMB
protocol as well as how to add users. Samba is configured as a
standalone server, not as a domain controller.
(HowTos)